Unit Study Guide/ Practice Test

In the animal cell structure, the cell membrane is composed of a phospholipid bilayer that separates the cell from its surroundings. Which of the following is also present in the cell membrane?

• Proteins

• ATP

• Vacuoles

• Mitochondria

Lysosomes are organelles that contain enzymes. Which of the following is a function of lysosomes?

• Lysosomes build lipids, carbohydrates, and proteins.

• Lysosomes package lipids, carbohydrates, and proteins.

• Lysosomes break down lipids, carbohydrates, and proteins.

• Lysosomes store lipids, carbohydrates, and proteins.

In facilitated diffusion, what are the special channels that help substances cross the cell membrane made off?

• Carbon Bonds

• Proteins

• Nucleic Acids

• Water Molecules

What types of cells DO NOT contain a nucleus or membrane- bound organelles?

• Eukaryotic

• Prokaryotic

• Plant

• Fungi

Which of the following matches a cell organelle with its function?

• Chloroplast- movement

• Nucleus- storage of genetic information

• Vacuole- energy production

• Mitochondria- photosynthesis

Which of the following functions is controlled by the cell membrane?

• Excreting waste

• Replicating DNA

• Producing energy

• Assembling proteins

Which of these is the process by which water moves across a selectively permeable membrane?

• Osmosis

• transpiration

• capillary action

• active transport

Which group of macromolecules contains enzymes?

• Carbohydrates

• Proteins

• Nucleic Acids

• Lipids

How does cellular transport help a cell to maintain homeostasis?

• It helps replace cells that are old.

• It helps the cell maintain balance.

• It helps the cells divide into two cells.

• It helps prevent mutations in the cell.

During cellular respiration, molecular bonds are broken in the transfer of matter that occurs. Which statement accurately describes this process?

• The bonds in carbon dioxide and water molecules are broken to form glucose and oxygen molecules.

• The bonds in glucose and oxygen molecules are broken to form water and carbon dioxide molecules.

• The bonds in glucose and water molecules are broken to form oxygen and carbon dioxide molecules.

• The bonds in carbon dioxide and oxygen molecules are broken to form glucose and water molecules.